[R] Data Manipulation

[Don MacQueen]

Does this example help?


>  a <- matrix(letters[1:12], ncol=3)
>  a
      [,1] [,2] [,3]
[1,] "a"  "e"  "i"
[2,] "b"  "f"  "j"
[3,] "c"  "g"  "k"
[4,] "d"  "h"  "l"

>  write.table(a[,3,drop=FALSE],quote=FALSE,col.names=FALSE,row.names=FALSE)
i
j
k
l



At 4:11 PM -0800 1/21/10, Peter Rote wrote:
>Thank you Dieter and Rolf,
>
>I have solved the slash Problem, but I still struggling  with the output
>files.
>
>I have tried this
>  by(AlexETF,AlexETF$Industry,function(a) {filename = paste("C:/ab/",gsub("
>","",a$Industry[1]),".txt",sep="")
>         print(filename)
>	write.table(a,file=filename,col.names = FALSE)    
>     }
>  )
>
>and this
>
>  by(AlexETF,AlexETF$Industry,function(a) {filename = paste("C:/ab/",gsub("
>","",a$Industry[1]),".txt",sep="")
>         print(filename)
>	write(as.character(a),file=filename)    
>     }
>  ) 
>
>
>I want in each file just the ticker with out any quotations mark.
>
>CMM
>FMCN
>IPG
>MWW
>
>Thanks in advance,
>Peter
>
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-- 
--------------------------------------
Don MacQueen
Environmental Protection Department
Lawrence Livermore National Laboratory
Livermore, CA, USA
925-423-1062